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Substances/ Elements
| Term | Definition |
|---|---|
| Chemical Reaction | a process during which the atoms of starting substants (reactants) rearrange to form a new substance (products) |
| Symbol | a combination of capital and lower case letters that stand for an element |
| Evidence of a chemical reaction | 1. gas creation 2. temp change 3. creation of a new substance |
| Ways to identify a substance | 1. chemical name 2. chemical formula 3. common name |
| matter | anything that has mass and takes up space |
| Substance | a type of matter defined by a unique particle |
| Water | H20 |
| Hydrogen | H |
| Calcium | Ca |
| Sodium | Na |